class student:
    def __init__(self,name):
        self.name=name
    def __str__(self):
        return f'我是{self.name}'
    def __call__(self,*args,**kwargs):
        for i in args:
            print(f"我有个位置参数叫{i}")
        for i in kwargs:
            print(f"我有个关键字参数{i}:{kwargs[i]}")

student1=student('张三')
student1('a','b',grade=1)
print(student1)